Why does Easel repeat model commands?

Is there a way to post G-code without a G1 and feed rate on every single line ?

Seeing as how the post processor is not user selectable and built into the Easel source code it would not be the easiest process to modify it in that manner. However you probably could use a find and replace feature within a word processor to remove the desired commands from the Easel generated Gcode file.
I realize that this isn’t the most ideal solution, but it’s probably the easiest way to accomplish the task while using Easel to generate the gcode.